I found in tp_btf program, direct access struct's pointer member's
behaviour isn't consistent with
BPF_CORE_READ. for example:
SEC("tp_btf/block_rq_issue")
int BPF_PROG(tp_btf__block_rq_issue, struct request_queue *q,
struct request *rq)
{
/* After echo none > /sys/block/$dev/queue/scheduler,
* the $dev's q->elevator will be set to NULL.
*/
if (!q->elevator)
bpf_printk("direct access: noop\n");
if (!BPF_CORE_READ(q, elevator))
bpf_printk("FROM CORE READ: noop\n");
return 0;
}
Although its value is NULL, from trace_pipe I can only see
> FROM CORE READ: noop
So it seems `if (!q->elevator)` always return false.
I tested it with kernel 5.7.0-rc7+ and 5.8.0-rc1+, both have this problem.
clang version: clang version 10.0.0-4ubuntu1~18.04.1
Reproduce step:
1. Run this bpf prog;
2. Run `cat /sys/kernel/debug/tracing/trace_pipe` in other window;
3. Run `echo none > /sys/block/sdc/queue/scheduler`; # please replace
sdc to your device;
4. Run `dd if=/dev/zero of=/dev/sdc bs=1MiB count=200 oflag=direct`;
The output of `llvm-objdump-10 -D bio.bpf.o` is:
bio.bpf.o: file format ELF64-BPF
Disassembly of section tp_btf/block_rq_issue:
0000000000000000 tp_btf__block_rq_issue:
0: b7 02 00 00 08 00 00 00 r2 = 8
1: 79 11 00 00 00 00 00 00 r1 = *(u64 *)(r1 + 0)
2: bf 16 00 00 00 00 00 00 r6 = r1
3: 0f 26 00 00 00 00 00 00 r6 += r2
4: 79 11 08 00 00 00 00 00 r1 = *(u64 *)(r1 + 8)
5: 55 01 0e 00 00 00 00 00 if r1 != 0 goto +14 <LBB0_2>
6: b7 01 00 00 00 00 00 00 r1 = 0
7: 73 1a fc ff 00 00 00 00 *(u8 *)(r10 - 4) = r1
8: b7 01 00 00 6f 6f 70 0a r1 = 175140719
9: 63 1a f8 ff 00 00 00 00 *(u32 *)(r10 - 8) = r1
10: 18 01 00 00 63 63 65 73 00 00 00 00 73 3a 20 6e r1 =
7935406810958488419 ll
12: 7b 1a f0 ff 00 00 00 00 *(u64 *)(r10 - 16) = r1
13: 18 01 00 00 64 69 72 65 00 00 00 00 63 74 20 61 r1 =
6998721791186332004 ll
15: 7b 1a e8 ff 00 00 00 00 *(u64 *)(r10 - 24) = r1
16: bf a1 00 00 00 00 00 00 r1 = r10
17: 07 01 00 00 e8 ff ff ff r1 += -24
18: b7 02 00 00 15 00 00 00 r2 = 21
19: 85 00 00 00 06 00 00 00 call 6
00000000000000a0 LBB0_2:
20: bf a1 00 00 00 00 00 00 r1 = r10
21: 07 01 00 00 e8 ff ff ff r1 += -24
22: b7 02 00 00 08 00 00 00 r2 = 8
23: bf 63 00 00 00 00 00 00 r3 = r6
24: 85 00 00 00 04 00 00 00 call 4
25: 79 a1 e8 ff 00 00 00 00 r1 = *(u64 *)(r10 - 24)
26: 55 01 0e 00 00 00 00 00 if r1 != 0 goto +14 <LBB0_4>
27: b7 01 00 00 0a 00 00 00 r1 = 10
28: 6b 1a fc ff 00 00 00 00 *(u16 *)(r10 - 4) = r1
29: b7 01 00 00 6e 6f 6f 70 r1 = 1886351214
30: 63 1a f8 ff 00 00 00 00 *(u32 *)(r10 - 8) = r1
31: 18 01 00 00 45 20 52 45 00 00 00 00 41 44 3a 20 r1 =
2322243604989485125 ll
33: 7b 1a f0 ff 00 00 00 00 *(u64 *)(r10 - 16) = r1
34: 18 01 00 00 46 52 4f 4d 00 00 00 00 20 43 4f 52 r1 =
5931033040285291078 ll
36: 7b 1a e8 ff 00 00 00 00 *(u64 *)(r10 - 24) = r1
37: bf a1 00 00 00 00 00 00 r1 = r10
38: 07 01 00 00 e8 ff ff ff r1 += -24
39: b7 02 00 00 16 00 00 00 r2 = 22
40: 85 00 00 00 06 00 00 00 call 6
0000000000000148 LBB0_4:
41: b7 00 00 00 00 00 00 00 r0 = 0
42: 95 00 00 00 00 00 00 00 exit
Disassembly of section license:
0000000000000000 LICENSE:
0: 47 <unknown>
0: 50 <unknown>
0: 4c <unknown>
0: 00 <unknown>
Disassembly of section .rodata.str1.1:
0000000000000000 .rodata.str1.1:
0: 64 69 72 65 63 74 20 61 w9 <<= 1629516899
1: 63 63 65 73 73 3a 20 6e *(u32 *)(r3 + 29541) = r6
2: 6f 6f 70 0a 00 46 52 4f <unknown>
3: 4d 20 43 4f 52 45 20 52 <unknown>
4: 45 41 44 3a 20 6e 6f 6f <unknown>
5: 70 <unknown>
5: 0a <unknown>
5: 00 <unknown>
Disassembly of section .BTF:
0000000000000000 .BTF:
0: 9f eb 01 00 18 00 00 00 <unknown>
1: 00 00 00 00 40 12 00 00 <unknown>
2: 40 12 00 00 2c 0d 00 00 r0 = *(u32 *)skb[r1]
3: 00 00 00 00 00 00 00 02 <unknown>
4: 02 00 00 00 01 00 00 00 <unknown>
5: 00 00 00 01 08 00 00 00 <unknown>
6: 40 00 00 00 00 00 00 00 r0 = *(u32 *)skb[r0]
7: 01 00 00 0d 04 00 00 00 <unknown>
8: 18 00 00 00 01 00 00 00 1c 00 00 00 00 00 00 01 r0 =
72057594037927937 ll
10: 04 00 00 00 20 00 00 01 w0 += 16777248
11: 20 00 00 00 01 00 00 0c r0 = *(u32 *)skb[201326593]
12: 03 00 00 00 4d 00 00 00 <unknown>
13: 42 00 00 04 58 07 00 00 <unknown>
14: 5b 00 00 00 07 00 00 00 <unknown>
15: 00 00 00 00 66 00 00 00 <unknown>
16: 08 00 00 00 40 00 00 00 <unknown>
17: 6f 00 00 00 09 00 00 00 r0 <<= r0
18: 80 00 00 00 75 00 00 00 <unknown>
19: 0a 00 00 00 c0 00 00 00 <unknown>
20: 7c 00 00 00 0b 00 00 00 w0 >>= w0
21: 00 01 00 00 8c 00 00 00 <unknown>
22: 2a 00 00 00 40 01 00 00 <unknown>
23: 9d 00 00 00 2d 00 00 00 <unknown>
24: 80 01 00 00 a4 00 00 00 <unknown>
25: 2f 00 00 00 c0 01 00 00 r0 *= r0
26: ae 00 00 00 0f 00 00 00 if w0 < w0 goto +0 <.BTF+0xd8>
27: 00 02 00 00 ba 00 00 00 <unknown>
28: 30 00 00 00 40 02 00 00 r0 = *(u8 *)skb[576]
29: c7 00 00 00 0f 00 00 00 r0 s>>= 15
30: 80 02 00 00 d4 00 00 00 <unknown>
31: 32 00 00 00 c0 02 00 00 <unknown>
32: e5 00 00 00 22 00 00 00 <unknown>
33: 00 03 00 00 ef 00 00 00 <unknown>
34: 33 00 00 00 40 03 00 00 <unknown>
35: fb 00 00 00 19 00 00 00 <unknown>
36: 80 03 00 00 03 01 00 00 <unknown>
37: 04 00 00 00 a0 03 00 00 w0 += 928
38: 06 01 00 00 34 00 00 00 <unknown>
39: c0 03 00 00 11 01 00 00 <unknown>
40: 35 00 00 00 e0 03 00 00 if r0 >= 992 goto +0 <.BTF+0x148>
41: 1c 01 00 00 40 00 00 00 w1 -= w0
42: 00 04 00 00 21 01 00 00 <unknown>
43: 46 00 00 00 00 06 00 00 <unknown>
44: 29 01 00 00 4d 00 00 00 <unknown>
45: 40 06 00 00 2d 01 00 00 r0 = *(u32 *)skb[r0]
46: 04 00 00 00 80 06 00 00 w0 += 1664
47: 38 01 00 00 0f 00 00 00 <unknown>
48: a0 06 00 00 43 01 00 00 <unknown>
49: 33 00 00 00 c0 06 00 00 <unknown>
50: 4f 01 00 00 0f 00 00 00 r1 |= r0
51: 00 07 00 00 5e 01 00 00 <unknown>
52: 22 00 00 00 40 07 00 00 <unknown>
53: 6f 01 00 00 0f 00 00 00 r1 <<= r0
54: 80 07 00 00 7c 01 00 00 <unknown>
55: 0f 00 00 00 a0 07 00 00 r0 += r0
56: 8a 01 00 00 0f 00 00 00 <unknown>
57: c0 07 00 00 95 01 00 00 <unknown>
58: 04 00 00 00 e0 07 00 00 w0 += 2016
59: 9f 01 00 00 4e 00 00 00 <unknown>
60: 00 08 00 00 a7 01 00 00 <unknown>
61: 52 00 00 00 40 08 00 00 <unknown>
62: b1 01 00 00 53 00 00 00 <unknown>
63: 40 1c 00 00 b9 01 00 00 r0 = *(u32 *)skb[r1]
64: 5a 00 00 00 80 1d 00 00 <unknown>
65: c6 01 00 00 44 00 00 00 if w1 s< 68 goto +0 <.BTF+0x210>
66: 80 1e 00 00 cf 01 00 00 <unknown>
67: 65 00 00 00 00 1f 00 00 if r0 s> 7936 goto +0 <.BTF+0x220>
68: d6 01 00 00 0f 00 00 00 if w1 s<= 15 goto +0 <.BTF+0x228>
69: 40 22 00 00 f1 01 00 00 r0 = *(u32 *)skb[r2]
70: 0f 00 00 00 60 22 00 00 r0 += r0
71: fc 01 00 00 0f 00 00 00 <unknown>
72: 80 22 00 00 0d 02 00 00 <unknown>
73: 04 00 00 00 a0 22 00 00 w0 += 8864
74: 12 02 00 00 67 00 00 00 <unknown>
75: c0 22 00 00 1c 02 00 00 <unknown>
76: 68 00 00 00 00 23 00 00 <unknown>
77: 2c 02 00 00 6a 00 00 00 w2 *= w0
78: 00 24 00 00 2f 02 00 00 <unknown>
79: 44 00 00 00 40 24 00 00 w0 |= 9280
80: 3c 02 00 00 35 00 00 00 w2 /= w0
81: c0 24 00 00 49 02 00 00 <unknown>
82: 6b 00 00 00 00 25 00 00 *(u16 *)(r0 + 0) = r0
83: 56 02 00 00 68 00 00 00 if w2 != 104 goto +0 <.BTF+0x2a0>
84: c0 27 00 00 61 02 00 00 <unknown>
85: 68 00 00 00 c0 28 00 00 <unknown>
86: 70 02 00 00 44 00 00 00 <unknown>
87: c0 29 00 00 81 02 00 00 <unknown>
88: 35 00 00 00 40 2a 00 00 if r0 >= 10816 goto +0 <.BTF+0x2c8>
89: 92 02 00 00 04 00 00 00 <unknown>
90: 60 2a 00 00 a2 02 00 00 <unknown>
91: 6d 00 00 00 80 2a 00 00 if r0 s> r0 goto +0 <.BTF+0x2e0>
92: aa 02 00 00 70 00 00 00 <unknown>
93: 80 2b 00 00 b8 02 00 00 <unknown>
94: 74 00 00 00 00 2c 00 00 w0 >>= 11264
95: c5 02 00 00 68 00 00 00 if r2 s< 104 goto +0 <.BTF+0x300>
96: c0 2c 00 00 d4 02 00 00 <unknown>
97: 76 00 00 00 c0 2d 00 00 if w0 s>= 11712 goto +0 <.BTF+0x310>
98: e4 02 00 00 7d 00 00 00 <unknown>
99: 80 2f 00 00 ec 02 00 00 <unknown>
100: 44 00 00 00 c0 2f 00 00 w0 |= 12224
101: f9 02 00 00 7e 00 00 00 <unknown>
102: 40 30 00 00 03 03 00 00 r0 = *(u32 *)skb[r3]
103: 8a 00 00 00 40 37 00 00 <unknown>
104: 0f 03 00 00 8a 00 00 00 r3 += r0
105: 80 37 00 00 21 03 00 00 <unknown>
106: 8a 00 00 00 c0 37 00 00 <unknown>
107: 32 03 00 00 7b 00 00 00 <unknown>
108: 00 38 00 00 45 03 00 00 <unknown>
109: 8b 00 00 00 40 38 00 00 <unknown>
110: 4e 03 00 00 5a 00 00 00 <unknown>
111: 80 38 00 00 5b 03 00 00 <unknown>
112: 8e 00 00 00 80 39 00 00 <unknown>
113: 00 00 00 00 00 00 00 02 <unknown>
114: a5 00 00 00 00 00 00 00 if r0 < 0 goto +0 <.BTF+0x398>
115: 00 00 00 02 9e 00 00 00 <unknown>
116: 00 00 00 00 00 00 00 02 <unknown>
117: 98 00 00 00 00 00 00 00 <unknown>
118: 00 00 00 02 a6 00 00 00 <unknown>
119: 00 00 00 00 00 00 00 02 <unknown>
120: 0c 00 00 00 7c 00 00 00 w0 += w0
121: 00 00 00 08 0d 00 00 00 <unknown>
122: 00 00 00 00 02 00 00 0d <unknown>
123: 0e 00 00 00 00 00 00 00 <unknown>
124: 10 00 00 00 00 00 00 00 <unknown>
125: 11 00 00 00 67 03 00 00 <unknown>
126: 00 00 00 08 0f 00 00 00 <unknown>
127: 70 03 00 00 00 00 00 01 <unknown>
128: 04 00 00 00 20 00 00 00 w0 += 32
129: 00 00 00 00 00 00 00 02 <unknown>
130: 06 00 00 00 00 00 00 00 <unknown>
131: 00 00 00 02 12 00 00 00 <unknown>
132: 7d 03 00 00 13 00 00 04 if r3 s>= r0 goto +0 <.BTF+0x428>
133: 60 00 00 00 81 03 00 00 <unknown>
134: 11 00 00 00 00 00 00 00 <unknown>
135: 89 03 00 00 13 00 00 00 <unknown>
136: 40 00 00 00 91 03 00 00 r0 = *(u32 *)skb[r0]
137: 0f 00 00 00 80 00 00 00 r0 += r0
138: 98 03 00 00 14 00 00 00 <unknown>
139: a0 00 00 00 a1 03 00 00 <unknown>
140: 14 00 00 00 b0 00 00 00 w0 -= 176
141: ab 03 00 00 14 00 00 00 <unknown>
142: c0 00 00 00 b9 03 00 00 <unknown>
143: 15 00 00 00 d0 00 00 00 if r0 == 208 goto +0 <.BTF+0x480>
144: c3 03 00 00 16 00 00 00 lock *(u32 *)(r3 + 0) += r0
145: d8 00 00 00 cd 03 00 00 <unknown>
146: 19 00 00 00 e0 00 00 00 <unknown>
147: dc 03 00 00 1b 00 00 00 <unknown>
148: 00 01 00 00 e4 03 00 00 <unknown>
149: 1f 00 00 00 c0 01 00 00 r0 -= r0
150: ee 03 00 00 22 00 00 00 <unknown>
151: 00 02 00 00 00 00 00 00 <unknown>
152: 23 00 00 00 40 02 00 00 <unknown>
153: f9 03 00 00 14 00 00 00 <unknown>
154: 40 02 00 00 01 04 00 00 r0 = *(u32 *)skb[r0]
155: 14 00 00 00 50 02 00 00 w0 -= 592
156: 0d 04 00 00 19 00 00 00 <unknown>
157: 60 02 00 00 16 04 00 00 <unknown>
158: 24 00 00 00 80 02 00 00 w0 *= 640
159: 20 04 00 00 25 00 00 00 r0 = *(u32 *)skb[37]
160: c0 02 00 00 28 04 00 00 <unknown>
161: 28 00 00 00 00 03 00 00 r0 = *(u16 *)skb[768]
162: 00 00 00 00 00 00 00 02 <unknown>
163: 9f 00 00 00 37 04 00 00 <unknown>
164: 00 00 00 01 02 00 00 00 <unknown>
165: 10 00 00 00 46 04 00 00 <unknown>
166: 00 00 00 08 16 00 00 00 <unknown>
167: 53 04 00 00 00 00 00 08 <unknown>
168: 17 00 00 00 56 04 00 00 r0 -= 1110
169: 00 00 00 08 18 00 00 00 <unknown>
170: 5b 04 00 00 00 00 00 01 <unknown>
171: 01 00 00 00 08 00 00 00 <unknown>
172: 69 04 00 00 00 00 00 08 r4 = *(u16 *)(r0 + 0)
173: 1a 00 00 00 00 00 00 00 <unknown>
174: 01 00 00 04 04 00 00 00 <unknown>
175: 72 04 00 00 04 00 00 00 <unknown>
176: 00 00 00 00 7a 04 00 00 <unknown>
177: 04 00 00 04 18 00 00 00 w0 += 24
178: 84 04 00 00 1c 00 00 00 w4 = -w4
179: 00 00 00 00 8e 04 00 00 <unknown>
180: 0f 00 00 00 40 00 00 00 r0 += r0
181: 96 04 00 00 0f 00 00 00 <unknown>
182: 60 00 00 00 9d 04 00 00 <unknown>
183: 0f 00 00 00 80 00 00 00 r0 += r0
184: aa 04 00 00 00 00 00 08 <unknown>
185: 1d 00 00 00 b3 04 00 00 if r0 == r0 goto +0 <.BTF+0x5d0>
186: 00 00 00 08 1e 00 00 00 <unknown>
187: b7 04 00 00 00 00 00 08 r4 = 134217728
188: 02 00 00 00 00 00 00 00 <unknown>
189: 00 00 00 02 20 00 00 00 <unknown>
190: bd 04 00 00 00 00 00 08 if r4 <= r0 goto +0 <.BTF+0x5f8>
191: 21 00 00 00 00 00 00 00 <unknown>
192: 01 00 00 0d 00 00 00 00 <unknown>
193: 00 00 00 00 11 00 00 00 <unknown>
194: 00 00 00 00 00 00 00 02 <unknown>
...
196: 00 00 00 05 00 00 00 00 <unknown>
197: 00 00 00 00 00 00 00 02 <unknown>
198: 26 00 00 00 00 00 00 00 if w0 > 0 goto +0 <.BTF+0x638>
199: 00 00 00 02 7e 00 00 00 <unknown>
200: ca 04 00 00 03 00 00 04 <unknown>
201: 10 00 00 00 d2 04 00 00 <unknown>
202: 27 00 00 00 00 00 00 00 r0 *= 0
203: da 04 00 00 0f 00 00 00 <unknown>
204: 40 00 00 00 e1 04 00 00 r0 = *(u32 *)skb[r0]
205: 0f 00 00 00 60 00 00 00 r0 += r0
206: 00 00 00 00 00 00 00 02 <unknown>
207: a4 00 00 00 00 00 00 00 w0 ^= 0
208: 00 00 00 03 00 00 00 00 <unknown>
209: 26 00 00 00 29 00 00 00 if w0 > 41 goto +0 <.BTF+0x690>
210: 00 00 00 00 eb 04 00 00 <unknown>
211: 00 00 00 01 04 00 00 00 <unknown>
212: 20 00 00 00 00 00 00 00 r0 = *(u32 *)skb[0]
213: 00 00 00 02 2b 00 00 00 <unknown>
214: ff 04 00 00 00 00 00 08 <unknown>
215: 2c 00 00 00 00 00 00 00 w0 *= w0
216: 01 00 00 0d 04 00 00 00 <unknown>
217: 00 00 00 00 07 00 00 00 <unknown>
218: 00 00 00 00 00 00 00 02 <unknown>
219: 2e 00 00 00 00 00 00 00 if w0 > w0 goto +0 <.BTF+0x6e0>
220: 00 00 00 0a 96 00 00 00 <unknown>
221: 00 00 00 00 00 00 00 02 <unknown>
222: 94 00 00 00 00 00 00 00 <unknown>
223: 00 00 00 02 31 00 00 00 <unknown>
224: 00 00 00 00 00 00 00 02 <unknown>
225: 95 00 00 00 00 00 00 00 exit
226: 00 00 00 02 92 00 00 00 <unknown>
227: 13 05 00 00 00 00 00 01 <unknown>
228: 08 00 00 00 40 00 00 00 <unknown>
229: 25 05 00 00 00 00 00 08 if r5 > 134217728 goto +0 <.BTF+0x730>
230: 0f 00 00 00 2b 05 00 00 r0 += r0
231: 00 00 00 08 36 00 00 00 <unknown>
232: 36 05 00 00 01 00 00 04 if w5 >= 67108865 goto +0 <.BTF+0x748>
233: 04 00 00 00 00 00 00 00 w0 += 0
234: 37 00 00 00 00 00 00 00 r0 /= 0
235: 00 00 00 00 01 00 00 05 <unknown>
236: 04 00 00 00 3f 05 00 00 w0 += 1343
237: 38 00 00 00 00 00 00 00 <unknown>
238: 45 05 00 00 01 00 00 04 <unknown>
239: 04 00 00 00 52 05 00 00 w0 += 1362
240: 39 00 00 00 00 00 00 00 <unknown>
241: 5b 05 00 00 00 00 00 08 <unknown>
242: 3a 00 00 00 6b 05 00 00 <unknown>
243: 01 00 00 04 04 00 00 00 <unknown>
244: 00 00 00 00 3b 00 00 00 <unknown>
...
246: 03 00 00 05 04 00 00 00 <unknown>
247: 75 05 00 00 19 00 00 00 if r5 s>= 25 goto +0 <.BTF+0x7c0>
...
249: 3c 00 00 00 00 00 00 00 w0 /= w0
250: 00 00 00 00 3d 00 00 00 <unknown>
...
252: 02 00 00 04 02 00 00 00 <unknown>
253: 79 05 00 00 16 00 00 00 r5 = *(u64 *)(r0 + 0)
254: 00 00 00 00 80 05 00 00 <unknown>
255: 16 00 00 00 08 00 00 00 if w0 == 8 goto +0 <.BTF+0x800>
256: 00 00 00 00 02 00 00 04 <unknown>
257: 04 00 00 00 88 05 00 00 w0 += 1416
258: 3e 00 00 00 00 00 00 00 if w0 >= w0 goto +0 <.BTF+0x818>
259: 97 05 00 00 3e 00 00 00 <unknown>
260: 10 00 00 00 9c 05 00 00 <unknown>
261: 00 00 00 08 3f 00 00 00 <unknown>
262: a0 05 00 00 00 00 00 08 <unknown>
263: 14 00 00 00 a6 05 00 00 w0 -= 1446
264: 0c 00 00 84 40 00 00 00 w0 += w0
265: ae 05 00 00 41 00 00 00 if w5 < w0 goto +0 <.BTF+0x850>
266: 00 00 00 00 b3 05 00 00 <unknown>
267: 44 00 00 00 40 00 00 00 w0 |= 64
268: b9 05 00 00 46 00 00 00 <unknown>
269: c0 00 00 00 c0 05 00 00 <unknown>
270: 47 00 00 00 00 01 00 00 r0 |= 256
271: c5 05 00 00 48 00 00 00 if r5 s< 72 goto +0 <.BTF+0x880>
272: 40 01 00 00 cb 05 00 00 r0 = *(u32 *)skb[r0]
273: 49 00 00 00 80 01 00 00 <unknown>
274: ce 05 00 00 4a 00 00 00 if w5 s< w0 goto +0 <.BTF+0x898>
275: c0 01 00 00 d3 05 00 00 <unknown>
276: 0f 00 00 00 e0 01 00 01 r0 += r0
277: e5 05 00 00 0f 00 00 00 <unknown>
278: e1 01 00 01 f4 05 00 00 <unknown>
279: 0f 00 00 00 e2 01 00 01 r0 += r0
280: 0a 06 00 00 0f 00 00 00 <unknown>
281: e3 01 00 01 23 06 00 00 <unknown>
282: 0f 00 00 00 e4 01 00 01 r0 += r0
283: 00 00 00 00 00 00 00 02 <unknown>
284: 42 00 00 00 00 00 00 00 <unknown>
285: 00 00 00 0a 43 00 00 00 <unknown>
286: 33 06 00 00 00 00 00 01 <unknown>
287: 01 00 00 00 08 00 00 01 <unknown>
288: 38 06 00 00 02 00 00 04 <unknown>
289: 10 00 00 00 42 06 00 00 <unknown>
290: 45 00 00 00 00 00 00 00 <unknown>
291: 47 06 00 00 45 00 00 00 r6 |= 69
292: 40 00 00 00 00 00 00 00 r0 = *(u32 *)skb[r0]
293: 00 00 00 02 44 00 00 00 <unknown>
294: 00 00 00 00 00 00 00 02 <unknown>
295: 40 00 00 00 00 00 00 00 r0 = *(u32 *)skb[r0]
296: 00 00 00 02 a3 00 00 00 <unknown>
297: 00 00 00 00 00 00 00 02 <unknown>
298: a2 00 00 00 00 00 00 00 <unknown>
299: 00 00 00 02 a0 00 00 00 <unknown>
300: ce 05 00 00 01 00 00 04 if w5 s< w0 goto +0 <.BTF+0x968>
301: 04 00 00 00 4c 06 00 00 w0 += 1612
302: 4b 00 00 00 00 00 00 00 <unknown>
303: 55 06 00 00 00 00 00 08 if r6 != 134217728 goto +0 <.BTF+0x980>
304: 4c 00 00 00 60 06 00 00 w0 |= w0
305: 01 00 00 04 04 00 00 00 <unknown>
306: 70 06 00 00 19 00 00 00 <unknown>
...
308: 00 00 00 02 9d 00 00 00 <unknown>
309: 00 00 00 00 00 00 00 02 <unknown>
310: 99 00 00 00 75 06 00 00 <unknown>
311: 05 00 00 04 28 00 00 00 goto +1024 <.BTF+0x29c0>
312: 81 06 00 00 1d 00 00 00 <unknown>
313: 00 00 00 00 86 06 00 00 <unknown>
314: 1d 00 00 00 40 00 00 00 if r0 == r0 goto +0 <.BTF+0x9d8>
315: 8a 06 00 00 1d 00 00 00 <unknown>
316: 80 00 00 00 8e 06 00 00 <unknown>
317: 50 00 00 00 c0 00 00 00 r0 = *(u8 *)skb[r0]
318: 99 06 00 00 1d 00 00 00 <unknown>
319: 00 01 00 00 9f 06 00 00 <unknown>
320: 00 00 00 08 51 00 00 00 <unknown>
321: a3 06 00 00 00 00 00 08 <unknown>
322: 0f 00 00 00 00 00 00 00 r0 += r0
323: 00 00 00 03 00 00 00 00 <unknown>
324: 4f 00 00 00 29 00 00 00 r0 |= r0
325: 10 00 00 00 a9 06 00 00 <unknown>
326: 04 00 00 04 28 00 00 00 w0 += 40
327: b3 05 00 00 54 00 00 00 <unknown>
328: 00 00 00 00 b4 06 00 00 <unknown>
329: 33 00 00 00 80 00 00 00 <unknown>
330: bc 06 00 00 57 00 00 00 w6 = w0
331: c0 00 00 00 c5 06 00 00 <unknown>
332: 50 00 00 00 00 01 00 00 r0 = *(u8 *)skb[r0]
333: cb 06 00 00 02 00 00 04 <unknown>
334: 10 00 00 00 42 06 00 00 <unknown>
335: 55 00 00 00 00 00 00 00 if r0 != 0 goto +0 <.BTF+0xa80>
336: d6 06 00 00 56 00 00 00 if w6 s<= 86 goto +0 <.BTF+0xa88>
337: 40 00 00 00 00 00 00 00 r0 = *(u32 *)skb[r0]
338: 00 00 00 02 54 00 00 00 <unknown>
339: 00 00 00 00 00 00 00 02 <unknown>
340: 55 00 00 00 00 00 00 00 if r0 != 0 goto +0 <.BTF+0xaa8>
341: 00 00 00 02 58 00 00 00 <unknown>
342: 00 00 00 00 01 00 00 0d <unknown>
...
344: 59 00 00 00 00 00 00 00 <unknown>
345: 00 00 00 02 53 00 00 00 <unknown>
346: dc 06 00 00 03 00 00 04 <unknown>
347: 20 00 00 00 e8 06 00 00 r0 = *(u32 *)skb[1768]
348: 5b 00 00 00 00 00 00 00 <unknown>
349: b3 05 00 00 44 00 00 00 <unknown>
350: 40 00 00 00 ed 06 00 00 r0 = *(u32 *)skb[r0]
351: 61 00 00 00 c0 00 00 00 r0 = *(u32 *)(r0 + 0)
352: f2 06 00 00 00 00 00 08 <unknown>
353: 5c 00 00 00 00 07 00 00 w0 &= w0
354: 00 00 00 08 5d 00 00 00 <unknown>
355: 00 00 00 00 01 00 00 04 <unknown>
356: 08 00 00 00 72 04 00 00 <unknown>
357: 5e 00 00 00 00 00 00 00 if w0 != w0 goto +0 <.BTF+0xb30>
358: 0b 07 00 00 00 00 00 08 <unknown>
359: 5f 00 00 00 0f 07 00 00 r0 &= r0
360: 00 00 00 08 60 00 00 00 <unknown>
361: 15 07 00 00 00 00 00 01 if r7 == 16777216 goto +0 <.BTF+0xb50>
362: 08 00 00 00 40 00 00 01 <unknown>
363: 23 07 00 00 00 00 00 08 <unknown>
364: 62 00 00 00 00 00 00 00 <unknown>
365: 00 00 00 02 63 00 00 00 <unknown>
366: 00 00 00 00 01 00 00 0d <unknown>
...
368: 64 00 00 00 00 00 00 00 w0 <<= 0
369: 00 00 00 02 5a 00 00 00 <unknown>
370: 2f 07 00 00 1a 00 00 04 r7 *= r0
371: 68 00 00 00 3c 07 00 00 <unknown>
372: 33 00 00 00 00 00 00 00 <unknown>
373: 47 07 00 00 33 00 00 00 r7 |= 51
374: 40 00 00 00 59 07 00 00 r0 = *(u32 *)skb[r0]
375: 33 00 00 00 80 00 00 00 <unknown>
376: 6c 07 00 00 0f 00 00 00 w7 <<= w0
377: c0 00 00 00 7b 07 00 00 <unknown>
378: 0f 00 00 00 e0 00 00 00 r0 += r0
379: 8b 07 00 00 0f 00 00 00 <unknown>
380: 00 01 00 00 99 07 00 00 <unknown>
381: 0f 00 00 00 20 01 00 00 r0 += r0
382: a5 07 00 00 0f 00 00 00 if r7 < 15 goto +0 <.BTF+0xbf8>
383: 40 01 00 00 b6 07 00 00 r0 = *(u32 *)skb[r0]
384: 0f 00 00 00 60 01 00 00 r0 += r0
385: ca 07 00 00 0f 00 00 00 <unknown>
386: 80 01 00 00 dd 07 00 00 <unknown>
387: 0f 00 00 00 a0 01 00 00 r0 += r0
388: ee 07 00 00 0f 00 00 00 <unknown>
389: c0 01 00 00 f5 07 00 00 <unknown>
390: 0f 00 00 00 e0 01 00 00 r0 += r0
391: fc 07 00 00 0f 00 00 00 <unknown>
392: 00 02 00 00 10 08 00 00 <unknown>
393: 0f 00 00 00 20 02 00 00 r0 += r0
394: 27 08 00 00 0f 00 00 00 r8 *= 15
395: 40 02 00 00 3e 08 00 00 r0 = *(u32 *)skb[r0]
396: 0f 00 00 00 60 02 00 00 r0 += r0
397: 57 08 00 00 0f 00 00 00 r8 &= 15
398: 80 02 00 00 6b 08 00 00 <unknown>
399: 0f 00 00 00 a0 02 00 00 r0 += r0
400: 7d 08 00 00 14 00 00 00 if r8 s>= r0 goto +0 <.BTF+0xc88>
401: c0 02 00 00 8a 08 00 00 <unknown>
402: 14 00 00 00 d0 02 00 00 w0 -= 720
403: a1 08 00 00 14 00 00 00 <unknown>
404: e0 02 00 00 b6 08 00 00 <unknown>
405: 18 00 00 00 f0 02 00 00 c1 08 00 00 18 00 00 00 r0 =
103079215856 ll
407: f8 02 00 00 d4 08 00 00 <unknown>
408: 18 00 00 00 00 03 00 00 f3 08 00 00 66 00 00 00 r0 =
438086664960 ll
410: 20 03 00 00 f9 08 00 00 r0 = *(u32 *)skb[2297]
411: 03 00 00 06 04 00 00 00 <unknown>
412: 09 09 00 00 00 00 00 00 <unknown>
413: 18 09 00 00 01 00 00 00 25 09 00 00 02 00 00 00 r9 =
8589934593 ll
415: 00 00 00 00 00 00 00 02 <unknown>
416: 9a 00 00 00 32 09 00 00 <unknown>
417: 04 00 00 04 20 00 00 00 w0 += 32
418: 38 09 00 00 5b 00 00 00 <unknown>
419: 00 00 00 00 3e 09 00 00 <unknown>
420: 35 00 00 00 40 00 00 00 if r0 >= 64 goto +0 <.BTF+0xd28>
421: 48 09 00 00 69 00 00 00 r0 = *(u16 *)skb[r0]
422: 60 00 00 00 4c 09 00 00 <unknown>
423: 44 00 00 00 80 00 00 00 w0 |= 128
424: 56 09 00 00 01 00 00 04 if w9 != 67108865 goto +0 <.BTF+0xd48>
425: 04 00 00 00 97 05 00 00 w0 += 1431
426: 19 00 00 00 00 00 00 00 <unknown>
427: 00 00 00 00 00 00 00 02 <unknown>
428: 93 00 00 00 6c 09 00 00 <unknown>
429: 04 00 00 04 58 00 00 00 w0 += 88
430: 79 09 00 00 5a 00 00 00 r9 = *(u64 *)(r0 + 0)
431: 00 00 00 00 7e 09 00 00 <unknown>
432: 53 00 00 00 00 01 00 00 <unknown>
433: 84 09 00 00 6c 00 00 00 w9 = -w9
434: 40 02 00 00 87 09 00 00 r0 = *(u32 *)skb[r0]
435: 04 00 00 00 80 02 00 00 w0 += 640
436: 00 00 00 00 00 00 00 02 <unknown>
437: a7 00 00 00 8b 09 00 00 r0 ^= 2443
438: 04 00 00 04 20 00 00 00 w0 += 32
439: 9c 09 00 00 4d 00 00 00 <unknown>
440: 00 00 00 00 a6 09 00 00 <unknown>
441: 04 00 00 00 40 00 00 00 w0 += 64
442: ac 09 00 00 10 00 00 00 w9 ^= w0
443: 80 00 00 00 b2 09 00 00 <unknown>
444: 6e 00 00 00 c0 00 00 00 if w0 s> w0 goto +0 <.BTF+0xde8>
445: 00 00 00 00 00 00 00 02 <unknown>
446: 6f 00 00 00 00 00 00 00 r0 <<= r0
447: 00 00 00 0a 9b 00 00 00 <unknown>
448: aa 02 00 00 02 00 00 04 <unknown>
449: 10 00 00 00 42 06 00 00 <unknown>
450: 71 00 00 00 00 00 00 00 r0 = *(u8 *)(r0 + 0)
451: ed 06 00 00 72 00 00 00 <unknown>
452: 40 00 00 00 00 00 00 00 r0 = *(u32 *)skb[r0]
453: 00 00 00 02 70 00 00 00 <unknown>
454: 00 00 00 00 00 00 00 02 <unknown>
455: 73 00 00 00 00 00 00 00 *(u8 *)(r0 + 0) = r0
456: 01 00 00 0d 00 00 00 00 <unknown>
457: 00 00 00 00 71 00 00 00 <unknown>
458: b6 09 00 00 00 00 00 08 if w9 <= 134217728 goto +0 <.BTF+0xe58>
459: 75 00 00 00 c8 09 00 00 if r0 s>= 2504 goto +0 <.BTF+0xe60>
460: 02 00 00 04 18 00 00 00 <unknown>
461: d8 09 00 00 35 00 00 00 <unknown>
462: 00 00 00 00 dd 09 00 00 <unknown>
463: 44 00 00 00 40 00 00 00 w0 |= 64
464: e2 09 00 00 07 00 00 84 <unknown>
465: 38 00 00 00 ed 09 00 00 <unknown>
466: 5b 00 00 00 00 00 00 00 <unknown>
467: f3 09 00 00 33 00 00 00 <unknown>
468: 40 00 00 00 04 0a 00 00 r0 = *(u32 *)skb[r0]
469: 77 00 00 00 80 00 00 00 r0 >>= 128
470: 0c 0a 00 00 77 00 00 00 w10 += w0
471: c0 00 00 00 1b 0a 00 00 <unknown>
472: 7b 00 00 00 00 01 00 01 *(u64 *)(r0 + 0) = r0
473: 28 0a 00 00 7b 00 00 00 r0 = *(u16 *)skb[123]
474: 01 01 00 01 35 0a 00 00 <unknown>
475: 70 00 00 00 40 01 00 00 <unknown>
476: 00 00 00 00 00 00 00 02 <unknown>
477: 78 00 00 00 39 0a 00 00 <unknown>
478: 00 00 00 08 79 00 00 00 <unknown>
479: 00 00 00 00 01 00 00 0d <unknown>
...
481: 7a 00 00 00 00 00 00 00 <unknown>
482: 00 00 00 02 76 00 00 00 <unknown>
483: 4b 0a 00 00 00 00 00 08 <unknown>
484: 7c 00 00 00 50 0a 00 00 w0 >>= w0
485: 00 00 00 01 01 00 00 00 <unknown>
486: 08 00 00 04 00 00 00 00 <unknown>
487: 00 00 00 02 97 00 00 00 <unknown>
488: 56 0a 00 00 08 00 00 04 if w10 != 67108872 goto +0 <.BTF+0xf48>
489: e0 00 00 00 5e 0a 00 00 <unknown>
490: 7f 00 00 00 00 00 00 00 r0 >>= r0
491: 67 0a 00 00 0f 00 00 00 r10 <<= 15
492: 40 00 00 00 71 0a 00 00 r0 = *(u32 *)skb[r0]
493: 80 00 00 00 80 00 00 00 <unknown>
494: 7a 0a 00 00 80 00 00 00 <unknown>
495: c0 02 00 00 84 0a 00 00 <unknown>
496: 35 00 00 00 00 05 00 00 if r0 >= 1280 goto +0 <.BTF+0xf88>
497: 90 0a 00 00 89 00 00 00 <unknown>
498: 40 05 00 00 9c 0a 00 00 r0 = *(u32 *)skb[r0]
499: 5a 00 00 00 c0 05 00 00 <unknown>
500: a8 0a 00 00 6c 00 00 00 <unknown>
501: c0 06 00 00 00 00 00 00 <unknown>
502: 00 00 00 02 a1 00 00 00 <unknown>
503: b9 0a 00 00 00 00 00 08 <unknown>
504: 81 00 00 00 c3 0a 00 00 <unknown>
505: 08 00 00 04 48 00 00 00 <unknown>
506: d8 09 00 00 35 00 00 00 <unknown>
507: 00 00 00 00 cd 0a 00 00 <unknown>
508: 04 00 00 00 20 00 00 00 w0 += 32
509: d4 0a 00 00 04 00 00 00 <unknown>
510: 40 00 00 00 dc 0a 00 00 r0 = *(u32 *)skb[r0]
511: 82 00 00 00 80 00 00 00 <unknown>
512: e5 0a 00 00 22 00 00 00 <unknown>
513: c0 00 00 00 ef 0a 00 00 <unknown>
514: 83 00 00 00 00 01 00 00 <unknown>
515: f5 0a 00 00 86 00 00 00 <unknown>
516: 40 01 00 00 fa 0a 00 00 r0 = *(u32 *)skb[r0]
517: 74 00 00 00 80 01 00 00 w0 >>= 384
518: 00 00 00 00 00 00 00 02 <unknown>
519: 22 00 00 00 00 00 00 00 <unknown>
520: 00 00 00 02 84 00 00 00 <unknown>
521: ff 0a 00 00 00 00 00 08 <unknown>
522: 85 00 00 00 00 00 00 00 call 0
523: 02 00 00 0d 22 00 00 00 <unknown>
524: 00 00 00 00 34 00 00 00 <unknown>
525: 00 00 00 00 22 00 00 00 <unknown>
526: 00 00 00 00 00 00 00 02 <unknown>
527: 87 00 00 00 0f 0b 00 00 r0 = -r0
528: 00 00 00 08 88 00 00 00 <unknown>
529: 00 00 00 00 02 00 00 0d <unknown>
...
531: 22 00 00 00 00 00 00 00 <unknown>
532: 22 00 00 00 1e 0b 00 00 <unknown>
533: 02 00 00 04 10 00 00 00 <unknown>
534: dd 09 00 00 11 00 00 00 if r9 s<= r0 goto +0 <.BTF+0x10b8>
535: 00 00 00 00 97 05 00 00 <unknown>
536: 11 00 00 00 40 00 00 00 <unknown>
537: 00 00 00 00 00 00 00 02 <unknown>
538: 9c 00 00 00 27 0b 00 00 <unknown>
539: 00 00 00 08 8c 00 00 00 <unknown>
540: 2e 0b 00 00 00 00 00 08 if w11 > w0 goto +0 <.BTF+0x10e8>
541: 8d 00 00 00 3e 0b 00 00 <unknown>
542: 00 00 00 08 33 00 00 00 <unknown>
543: 00 00 00 00 00 00 00 03 <unknown>
544: 00 00 00 00 1d 00 00 00 <unknown>
545: 29 00 00 00 05 00 00 00 <unknown>
546: 00 00 00 00 00 00 00 03 <unknown>
547: 00 00 00 00 43 00 00 00 <unknown>
548: 29 00 00 00 04 00 00 00 <unknown>
549: 4b 0c 00 00 00 00 00 0e <unknown>
550: 8f 00 00 00 01 00 00 00 <unknown>
551: 53 0c 00 00 01 00 00 0f <unknown>
552: 00 00 00 00 90 00 00 00 <unknown>
553: 00 00 00 00 04 00 00 00 <unknown>
554: d4 00 00 00 00 00 00 07 <unknown>
555: 00 00 00 00 5b 0c 00 00 <unknown>
556: 00 00 00 07 00 00 00 00 <unknown>
557: 6b 0c 00 00 00 00 00 07 *(u16 *)(r10 + 0) = r0
558: 00 00 00 00 76 0c 00 00 <unknown>
559: 00 00 00 07 00 00 00 00 <unknown>
560: 84 0c 00 00 00 00 00 07 <unknown>
561: 00 00 00 00 8f 0c 00 00 <unknown>
562: 00 00 00 07 00 00 00 00 <unknown>
563: 9e 0c 00 00 00 00 00 07 <unknown>
564: 00 00 00 00 ae 0c 00 00 <unknown>
565: 00 00 00 07 00 00 00 00 <unknown>
566: 12 02 00 00 00 00 00 07 <unknown>
567: 00 00 00 00 c0 0c 00 00 <unknown>
568: 00 00 00 07 00 00 00 00 <unknown>
569: c8 0c 00 00 00 00 00 07 <unknown>
570: 00 00 00 00 cf 0c 00 00 <unknown>
571: 00 00 00 07 00 00 00 00 <unknown>
572: d6 0c 00 00 00 00 00 07 <unknown> <.BTF+0x11e8>
573: 00 00 00 00 e5 0c 00 00 <unknown>
574: 00 00 00 07 00 00 00 00 <unknown>
575: ed 0c 00 00 00 00 00 07 <unknown>
576: 00 00 00 00 f9 0c 00 00 <unknown>
577: 00 00 00 07 00 00 00 00 <unknown>
578: 04 0d 00 00 00 00 00 07 <unknown>
579: 00 00 00 00 c0 05 00 00 <unknown>
580: 00 00 00 07 00 00 00 00 <unknown>
581: 0e 0d 00 00 00 00 00 07 <unknown>
582: 00 00 00 00 13 0d 00 00 <unknown>
583: 00 00 00 07 00 00 00 00 <unknown>
584: 75 00 00 00 00 00 00 07 if r0 s>= 117440512 goto +0
<.BTF+0x1248>
585: 00 00 00 00 1b 0d 00 00 <unknown>
586: 00 00 00 07 00 00 00 00 <unknown>
587: 00 6c 6f 6e 67 20 6c 6f <unknown>
588: 6e 67 20 75 6e 73 69 67 if w7 s> w6 goto +29984 <.BTF+0x3bb68>
589: 6e 65 64 20 69 6e 74 00 if w5 s> w6 goto +8292 <.BTF+0x11590>
590: 63 74 78 00 69 6e 74 00 *(u32 *)(r4 + 120) = r7
591: 74 70 5f 62 74 66 5f 5f w0 >>= 1600087668
592: 62 6c 6f 63 6b 5f 72 71 <unknown>
593: 5f 69 73 73 75 65 00 74 r9 &= r6
594: 70 5f 62 74 66 2f 62 6c <unknown>
595: 6f 63 6b 5f 72 71 5f 69 r3 <<= r6
596: 73 73 75 65 00 72 65 71 *(u8 *)(r3 + 25973) = r7
597: 75 65 73 74 5f 71 75 65 if r5 s>= 1702195551 goto
+29811 <.BTF+0x3b648>
598: 75 65 00 6c 61 73 74 5f if r5 s>= 1601467233 goto
+27648 <.BTF+0x372b8>
599: 6d 65 72 67 65 00 65 6c if r5 s> r6 goto +26482 <.BTF+0x34e50>
600: 65 76 61 74 6f 72 00 73 if r6 s> 1929409135 goto
+29793 <.BTF+0x3b5d0>
601: 74 61 74 73 00 72 71 5f w1 >>= 1601270272
602: 71 6f 73 00 6d 61 6b 65 <unknown>
603: 5f 72 65 71 75 65 73 74 r2 &= r7
604: 5f 66 6e 00 64 6d 61 5f r6 &= r6
605: 64 72 61 69 6e 5f 6e 65 w2 <<= 1701732206
606: 65 64 65 64 00 6d 71 5f if r4 s> 1601268992 goto
+25701 <.BTF+0x33620>
607: 6f 70 73 00 71 75 65 75 r0 <<= r7
608: 65 5f 63 74 78 00 71 75 <unknown> <.BTF+0x1348>
609: 65 75 65 5f 64 65 70 74 if r5 s> 1953523044 goto
+24421 <.BTF+0x30e38>
610: 68 00 71 75 65 75 65 5f <unknown>
611: 68 77 5f 63 74 78 00 6e <unknown>
612: 72 5f 68 77 5f 71 75 65 <unknown>
613: 75 65 73 00 62 61 63 6b if r5 s>= 1801675106 goto +115
<.BTF+0x16c8>
614: 69 6e 67 5f 64 65 76 5f <unknown>
615: 69 6e 66 6f 00 71 75 65 <unknown>
616: 75 65 64 61 74 61 00 71 if r5 s>= 1895850356 goto
+24932 <.BTF+0x31e68>
617: 75 65 75 65 5f 66 6c 61 if r5 s>= 1634494047 goto
+25973 <.BTF+0x33ef8>
618: 67 73 00 70 6d 5f 6f 6e r3 <<= 1852792685
619: 6c 79 00 69 64 00 62 6f w9 <<= w7
620: 75 6e 63 65 5f 67 66 70 <unknown> <.BTF+0x1408>
621: 00 71 75 65 75 65 5f 6c <unknown>
622: 6f 63 6b 00 6b 6f 62 6a r3 <<= r6
623: 00 6d 71 5f 6b 6f 62 6a <unknown>
624: 00 64 65 76 00 72 70 6d <unknown>
625: 5f 73 74 61 74 75 73 00 r3 &= r7
626: 6e 72 5f 70 65 6e 64 69 if w2 s> w7 goto +28767 <.BTF+0x39690>
627: 6e 67 00 6e 72 5f 72 65 if w7 s> w6 goto +28160 <.BTF+0x383a0>
628: 71 75 65 73 74 73 00 64 r5 = *(u8 *)(r7 + 29541)
629: 6d 61 5f 64 72 61 69 6e if r1 s> r6 goto +25695 <.BTF+0x336a8>
630: 5f 73 69 7a 65 00 64 6d r3 &= r7
631: 61 5f 64 72 61 69 6e 5f <unknown>
632: 62 75 66 66 65 72 00 64 <unknown>
633: 6d 61 5f 70 61 64 5f 6d if r1 s> r6 goto +28767 <.BTF+0x396c8>
634: 61 73 6b 00 64 6d 61 5f r3 = *(u32 *)(r7 + 107)
635: 61 6c 69 67 6e 6d 65 6e <unknown>
636: 74 00 72 71 5f 74 69 6d w0 >>= 1835627615
637: 65 6f 75 74 00 70 6f 6c <unknown> <.BTF+0x3b6e8>
638: 6c 5f 6e 73 65 63 00 70 <unknown>
639: 6f 6c 6c 5f 63 62 00 70 <unknown>
640: 6f 6c 6c 5f 73 74 61 74 <unknown>
641: 00 74 69 6d 65 6f 75 74 <unknown>
642: 00 74 69 6d 65 6f 75 74 <unknown>
643: 5f 77 6f 72 6b 00 69 63 r7 &= r7
644: 71 5f 6c 69 73 74 00 6c <unknown>
645: 69 6d 69 74 73 00 72 65 <unknown>
646: 71 75 69 72 65 64 5f 65 r5 = *(u8 *)(r7 + 29289)
647: 6c 65 76 61 74 6f 72 5f w5 <<= w6
648: 66 65 61 74 75 72 65 73 if w5 s> 1936028277 goto
+29793 <.BTF+0x3b750>
649: 00 73 67 5f 74 69 6d 65 <unknown>
650: 6f 75 74 00 73 67 5f 72 r5 <<= r7
651: 65 73 65 72 76 65 64 5f if r3 s> 1600415094 goto
+29285 <.BTF+0x3a788>
652: 73 69 7a 65 00 6e 6f 64 *(u8 *)(r9 + 25978) = r6
653: 65 00 62 6c 6b 5f 74 72 if r0 s> 1920229227 goto
+27746 <.BTF+0x37780>
654: 61 63 65 00 62 6c 6b 5f r3 = *(u32 *)(r6 + 101)
655: 74 72 61 63 65 5f 6d 75 w2 >>= 1970102117
656: 74 65 78 00 66 71 00 72 w5 >>= 1912631654
657: 65 71 75 65 75 65 5f 6c if r1 s> 1818191221 goto
+25973 <.BTF+0x34038>
658: 69 73 74 00 72 65 71 75 r3 = *(u16 *)(r7 + 116)
659: 65 75 65 5f 6c 6f 63 6b if r5 s> 1801678700 goto
+24421 <.BTF+0x30fc8>
660: 00 72 65 71 75 65 75 65 <unknown>
661: 5f 77 6f 72 6b 00 73 79 r7 &= r7
662: 73 66 73 5f 6c 6f 63 6b *(u8 *)(r6 + 24435) = r6
663: 00 73 79 73 66 73 5f 64 <unknown>
664: 69 72 5f 6c 6f 63 6b 00 r2 = *(u16 *)(r7 + 27743)
665: 75 6e 75 73 65 64 5f 68 <unknown> <.BTF+0x377c8>
666: 63 74 78 5f 6c 69 73 74 *(u32 *)(r4 + 24440) = r7
667: 00 75 6e 75 73 65 64 5f <unknown>
668: 68 63 74 78 5f 6c 6f 63 <unknown>
669: 6b 00 6d 71 5f 66 72 65 *(u16 *)(r0 + 29037) = r0
670: 65 7a 65 5f 64 65 70 74 if r10 s> 1953523044 goto
+24421 <.BTF+0x31020>
671: 68 00 62 73 67 5f 64 65 <unknown>
672: 76 00 63 61 6c 6c 62 61 if w0 s>= 1633840236 goto
+24931 <.BTF+0x32020>
673: 63 6b 5f 68 65 61 64 00 *(u32 *)(r11 + 26719) = r6
674: 6d 71 5f 66 72 65 65 7a if r1 s> r7 goto +26207 <.BTF+0x34810>
675: 65 5f 77 71 00 6d 71 5f <unknown> <.BTF+0x34818>
676: 66 72 65 65 7a 65 5f 6c if w2 s> 1818191226 goto
+25957 <.BTF+0x34050>
677: 6f 63 6b 00 71 5f 75 73 r3 <<= r6
678: 61 67 65 5f 63 6f 75 6e r7 = *(u32 *)(r6 + 24421)
679: 74 65 72 00 74 61 67 5f w5 >>= 1600610676
680: 73 65 74 00 74 61 67 5f *(u8 *)(r5 + 116) = r6
681: 73 65 74 5f 6c 69 73 74 *(u8 *)(r5 + 24436) = r6
682: 00 62 69 6f 5f 73 70 6c <unknown>
683: 69 74 00 64 65 62 75 67 r4 = *(u16 *)(r7 + 25600)
684: 66 73 5f 64 69 72 00 73 if w3 s> 1929409129 goto
+25695 <.BTF+0x33860>
685: 63 68 65 64 5f 64 65 62 *(u32 *)(r8 + 25701) = r6
686: 75 67 66 73 5f 64 69 72 if r7 s>= 1919509599 goto
+29542 <.BTF+0x3b0a8>
687: 00 72 71 6f 73 5f 64 65 <unknown>
688: 62 75 67 66 73 5f 64 69 <unknown>
689: 72 00 6d 71 5f 73 79 73 <unknown>
690: 66 73 5f 69 6e 69 74 5f if w3 s> 1601464686 goto
+26975 <.BTF+0x36090>
691: 64 6f 6e 65 00 63 6d 64 <unknown>
692: 5f 73 69 7a 65 00 72 65 r3 &= r7
693: 6c 65 61 73 65 5f 77 6f w5 <<= w6
694: 72 6b 00 77 72 69 74 65 <unknown>
695: 5f 68 69 6e 74 73 00 62 r8 &= r6
696: 6c 6b 5f 71 63 5f 74 00 w11 <<= w6
697: 75 6e 73 69 67 6e 65 64 <unknown> <.BTF+0x1668>
698: 20 69 6e 74 00 62 69 6f r0 = *(u32 *)skb[1869177344]
699: 00 62 69 5f 6e 65 78 74 <unknown>
700: 00 62 69 5f 64 69 73 6b <unknown>
701: 00 62 69 5f 6f 70 66 00 <unknown>
702: 62 69 5f 66 6c 61 67 73 <unknown>
703: 00 62 69 5f 69 6f 70 72 <unknown>
704: 69 6f 00 62 69 5f 77 72 <unknown>
705: 69 74 65 5f 68 69 6e 74 r4 = *(u16 *)(r7 + 24421)
706: 00 62 69 5f 73 74 61 74 <unknown>
707: 75 73 00 62 69 5f 70 61 if r3 s>= 1634754409 goto
+25088 <.BTF+0x32620>
708: 72 74 6e 6f 00 5f 5f 62 <unknown>
709: 69 5f 72 65 6d 61 69 6e <unknown>
710: 69 6e 67 00 62 69 5f 69 <unknown>
711: 74 65 72 00 62 69 5f 65 w5 >>= 1700751714
712: 6e 64 5f 69 6f 00 62 69 if
BTW, the llvm-objdump will core dump after output the above info:
Stack dump:
0. Program arguments: llvm-objdump-10 -D bio.bpf.o
/usr/lib/x86_64-linux-gnu/libLLVM-10.so.1(_ZN4llvm3sys15PrintStackTraceERNS_11raw_ostreamE+0x1f)[0x7f7636d5dc3f]
/usr/lib/x86_64-linux-gnu/libLLVM-10.so.1(_ZN4llvm3sys17RunSignalHandlersEv+0x50)[0x7f7636d5bf00]
/usr/lib/x86_64-linux-gnu/libLLVM-10.so.1(+0x978205)[0x7f7636d5e205]
/lib/x86_64-linux-gnu/libpthread.so.0(+0x12890)[0x7f76361d9890]
/usr/lib/x86_64-linux-gnu/libLLVM-10.so.1(+0x21bbed3)[0x7f76385a1ed3]
/usr/lib/x86_64-linux-gnu/libLLVM-10.so.1(+0x21baefb)[0x7f76385a0efb]
/usr/lib/x86_64-linux-gnu/libLLVM-10.so.1(+0x21bc0ce)[0x7f76385a20ce]
llvm-objdump-10[0x41b78c]
llvm-objdump-10[0x425278]
llvm-objdump-10[0x41f502]
llvm-objdump-10[0x41a473]
/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xe7)[0x7f763546db97]
llvm-objdump-10[0x41542a]
[1] 21636 segmentation fault (core dumped)
llvm-objdump-10 --version
LLVM (http://llvm.org/):
LLVM version 10.0.0
Optimized build.
Default target: x86_64-pc-linux-gnu
Host CPU: broadwell
Registered Targets:
aarch64 - AArch64 (little endian)
aarch64_32 - AArch64 (little endian ILP32)
aarch64_be - AArch64 (big endian)
amdgcn - AMD GCN GPUs
arm - ARM
arm64 - ARM64 (little endian)
arm64_32 - ARM64 (little endian ILP32)
armeb - ARM (big endian)
avr - Atmel AVR Microcontroller
bpf - BPF (host endian)
bpfeb - BPF (big endian)
bpfel - BPF (little endian)
hexagon - Hexagon
lanai - Lanai
mips - MIPS (32-bit big endian)
mips64 - MIPS (64-bit big endian)
mips64el - MIPS (64-bit little endian)
mipsel - MIPS (32-bit little endian)
msp430 - MSP430 [experimental]
nvptx - NVIDIA PTX 32-bit
nvptx64 - NVIDIA PTX 64-bit
ppc32 - PowerPC 32
ppc64 - PowerPC 64
ppc64le - PowerPC 64 LE
r600 - AMD GPUs HD2XXX-HD6XXX
riscv32 - 32-bit RISC-V
riscv64 - 64-bit RISC-V
sparc - Sparc
sparcel - Sparc LE
sparcv9 - Sparc V9
systemz - SystemZ
thumb - Thumb
thumbeb - Thumb (big endian)
wasm32 - WebAssembly 32-bit
wasm64 - WebAssembly 64-bit
x86 - 32-bit X86: Pentium-Pro and above
x86-64 - 64-bit X86: EM64T and AMD64
xcore - XCore
